Carbon-13 NMR spectroscopy

Kalinowski, H.‐O.; Berger, Stefan; Braun, S.; Griffiths, Lee

doi:10.1016/s0003-2670(00)81981-9

Cited by 323 publications

(121 citation statements)

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“…The possible presence of neoxanthin is supported by the presence of a singlet at 6.04 ppm, related to a 13 C resonance at 103.3 ppm; 26 this is quite unusual for a single double bond carbon and more suitable for allenes C C CH. 27 Several weak signals in 6.7-6.0 ppm range might belong to carotenoids; they show additional TOCSY correlations, but remain unassigned to single specific compounds, see Table 2.…”

Section: Carotenoidsmentioning

confidence: 99%

Metabolic profile of lettuce leaves by high-field NMR spectra

Sobolev¹,

Brosio²,

Gianferri³

et al. 2005

Magn. Reson. Chem.

151

138

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A detailed analysis of the proton high-field NMR spectra of aqueous and organic extracts of lettuce leaves is reported for the first time. A combination of COSY, TOCSY, 1 H-13 C HSQC, 1 H-13 C HMBC bidimensional sequences and DOSY was used to assign each spin system and to separate the components of the complex patterns. A large number of water-soluble metabolites belonging to different classes such as carbohydrates, polyols, organic acids and amino acids were fully assigned. Moreover, the complex spectra of metabolites extracted in organic solvents belonging to sterols, fatty acids, diacylglycerophospholipids, galactosyldiacylglycerols, sulpholipids, pheophytins, carotenoids and hydrocarbons were also assigned.

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Section: Carotenoidsmentioning

confidence: 99%

Metabolic profile of lettuce leaves by high-field NMR spectra

Sobolev¹,

Brosio²,

Gianferri³

et al. 2005

Magn. Reson. Chem.

151

138

View full text Add to dashboard Cite

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“…3b). Specifically, the peak at 68.9 ppm represents C-3 of ␣-D-galactose according to the 13 C chemical shift for carbohydrates (35). The C-2-C-5 signals of carbohydrate in PV6Gna appeared at 71.5-76.3 ppm and paralleled those of glucuronic acid (Fig.…”

Section: Resultsmentioning

confidence: 89%

Specific Binding of Glucose-derivatized Polymers to the Asialoglycoprotein Receptor of Mouse Primary Hepatocytes

Kim¹,

Goto²,

Akaike³

2001

Journal of Biological Chemistry

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In this study, we designed a novel amphiphilic poly-(p-Nvinylbenzyl-D-glucuronamide) (PV6Gna) modified at the 6-OH position of glucose for hepatocyte recognition to address the mechanism of the interaction between mouse primary hepatocytes and the PV6Gna. PV6Gna bound to lectins specific for glucose but not galactose as did other glucose-derivatized polymers. However, hepatocyte adhesion onto the PV6Gna surface was inhibited in the presence of galactose and its analogues but not in the presence of glucose and its analogues. We also showed that hepatocyte adhesion to the PV6Gna surface was inhibited dose dependently by asialofetuin (ASF). Interactions between soluble PV6Gna and hepatocytes were inhibited by GalNAc, ASF, and EGTA in flow cytometry analysis using fluorescein isothiocyanate-conjugated PV6Gna. Hepatocyte adhesion to the PV6Gna surface was inhibited more effectively by GalNAc than by methyl ␤-D-galactose. In flow cytometry analysis and cell adhesion assay, ASF competed for the inhibition of interaction between PV6Gna and hepatocytes 0.5-4 ؋ 10 5

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“…13 C and 1 H NMR values calculated by GIAO method were presented in Table 4 [34,35]. Carbons in the ring give signals in between of 100-200 ppm [36,37]. The experimental shift values of ring carbons of 5Br1HB observed between 114.53-143.80 ppm and they theoretically predicted in the range of 115.83-150.22 ppm in DMSO.…”

Section: Nbo Analizi (Nbo Analysis)mentioning

confidence: 92%